Joint for stovepipe casings



M. R. SHIPLEY Aug.1`6, 1927.

JOIN? Fon sTovEPIPE cAsINGs Filed Sept. 20. 1924 yi/Maze: jf 5MP/.5);

Patented Aug. 16, 1927.A

MARION n. sIIIPLnY, 'on MANHATTAN BEACH, CALIFORNIA.

, JOINT non s'TovEPIPE cAsINGs.

Application filed ASeptember 20, 19.24.V Serial No. 738,887.

This'invention relates lto pipe and casing, and it relates particularlytoa joint construction therefor.

My *invention is very useful-when employed for joining well casing, suchas is used in the oil producing industry.v In this industry, as'an oilwell is sunk, a well casingA is advanced downwardly into the well toprevent cavingl in of thewalls, excluding` ground water .and for otherreasons. Ordinary screwrcasing is commonly usedl for this purpose. In anendeavor to yreduce both thev initial expense of the screw casing and.cost of'installation thereof, stovepipe casing has been substitutedtherefor ,in many wells. Stovepipe casing, so called in thefoilindustry, is made up from fiat sheets Vof'metal rolled and securedvtogetherin sections to form a continuouspipe. It is usually made oftwoV concentricj'sheets. Stovepipe casing is found to be superior to thescrew casing inH i many cases, but it has been found difficult toeconomically make a iluidtight joint between the sections.

It is an object .of this invention to provide a joint adaptable tostovepipe casing which will provide an extremely reliable ihiidtightvvjoint. p i

It is a'further object of the invention to provide a joint 'constructionwhich will be very economical to make.

It is a stilllfurth'er object of the invention to provide a jointI ofthe class described which can be rapidly' assembled.

It isV also an objectl of the invention to providea joint which may bevery easily broken, if desired.

Otherv objects and the' specio 'advantages of the invention will be madeevident hereinafter.

,Y Referring to the drawings, which are for. illustrativepurposes only,v.

Fig. 1 isa view showing thekmale and fe'- male members ofthe joint in aposition ready tobe assembled.

Fig. 2 is a sectional View showing the male portion 12 at this pointbeing bent outward-y Fig. 5v is a section taken substantially asyindicated bythe line 5,45 of Fig. 3.

`As shown in the drawings and particui larlyin Fig. 1, my invention isprovidedl in the form of amale portion 11v and a female on the upperface 22 thereof. The compressing member 2O is rendered relativelymovable to thecasing 13 in an axial direction only by'means of pins 23which are rivetedtothe casing 13, as shown, these pins extending intoaxialy extending slots 24 provided. in the sleeve 20. An annularYpacking member 26 is provided which rests'near the end of the casing 13between the shoulder 16 of the lip'15 andthe lower annular face-27 ofthe' compressing member 20. The female portion'of the joint'is providedby flaring the extreme end of the cas-- ing 14, as indicated at 42, and-by bending the extreme end thereof back upon itself Ain a manner toprovide an interior retaining lip 30, having an annular interiorretaining face 31. Theface 31 is provided with cam faces 32 which areyarranged to engage with the cam portions 21 of the male member 11 when'the members are assembled. rAt the lower vend ofv and inside the .femalevmember 12,

there is secured an abutting ring 33 which ring being secured in place,such asby weldingv 34, as shown in Figs. 2 vand 3.

Freni the drawings it will bev seen that the. inner face 35.0f theretaining lip 30 is' slightly larger than the'cylindrical face '18 ofthe portion 11 and that thel outer face 36 of the lip'15 is of a sizeslightly smaller than theinner face 37 of the portion or mem-r ber 12.To permit th-efinserting of the portion 11 into the portion 12 past theretainingV` lip 30, Iprovide the portion 12 with an opening'seam 38.asshown. the wall of 'the ly and in opposite directions as to formYwings 39 having` converging fac-es 40. It will be-seen that to allow thelip 15 and the compressing member 20 to pass thefretaining lip-30 of themember 12, it is necessary to provide a means'for allowing the expandingof the member12. this being accomplished `by the4 provision of the f'open seam 38.V

After this engagement, a

The assemblingof the joint is substantially as follows:

rEhe male andl female portions 11 and 12 are first positionedv as shownin F ig. 1. The portion 12 is then expanded in a suitable manner asindicated by the dotted lines 42 of Fig.` 1. The portion 11 is thenext-endedv into the portion 12` as shown in Fig. 2, after which theAport-ion 12 is allowed to return to its original position. A clampingmember 43, as shown in Figs. 3 and 4, having converging faces 44 forengagement with the faces 40y of the wings 39, provided by the web 45and lips 46, is partially installed upon the wings 39 so as to partiallyconstrict the member 12. The casing 13 is then rotated from the positionshown in Fig. 2 into the position shown in Fig. '3. this occurs, it willbe seen that the cam portions 21 ride along the cam faces 32 ofVtheretaining lip 30 and force the compress; ing member downwardly in anaxial direction relative to the female portion 12. lt will be seen thatthe lower face 48 of the portion 11 will be brought into engagement withthe abutment face. 34 of: the abutment ring 33.

movement between the compressing member 20 and the casing 13 servesltotifrhtly com# press the packing member 26, this serving to force thepacking member 26 very securely against the inner wall 37 of the portion12, and the outer wall 18 of the portion 13. The clamp 43 is thencomplet-ely installed, as shown in Fig. 3 which compresses the innerface 35 of the retaining lip 30 and the inner face 37 of the portion12tightly against the exterior faces of the portion 11 which tends tolock them securely against rotation.

As an additional'precaution against a possible rotation between theportions 11 and 12, I provide a locking means which is clear'- ly shownin Fig. 5. vThe casing 13 is provided with a depressed hump 49 andtheretaining lip 30 of the portion 12 is pio vided with a recess 50. lVhenthe parts are assembled as shown in Fig. 2. the depressed hump 49 rests,as shown at 51 in Fig. 5,

it being forced inwardly due to itsV engagement with the interior face35 of the lip 30. lVhen the portions 11 and 12 are rotated into sealing`or locking position. as shown in Fig. 3, the depressed portion is movedleftwardly into the position shown, and at this time ext-ends into therecess 50 provid-ed in the retainingpipe 30.

From the foregoing` description, it will readily be seen that a joint ofthis character very effectively provides a reliable fluidtiglit joint.It will be seen that the packing member 26 is very forcefull)7 broughtinto contact with the interior face of the member 12, and with theexterior' face of the member 11. As seenfrom the drawings, he open Thenseam 38 extends to a point above the packing 26, and therefore does notaffect the joint. By providing the clamp member 43, asshown, itFIV ispossible tor-very 'rigidly constrict the outer end of the portion 12around the portion 1l. The oint shown in the drawings is comparativelyeconomical to produce. It may be very easily and rapidly assembled,aswill beseen from the descrip-l tion, and may be very convenientlybroken, as it will be seen that by first removing the clamp 43, thelocking betweenV Vthe depression 49 and the recess 50 isv released.

l claim as my invention:

1. A joint comprising: a tubular member havinga female portion formed onthe` end thereof; a tubular member having a male portion formed at theend thereof, saidmale portion beingV arranged for insertion into saidfemale portion without.V rotation of either portion 5' a packing memberarranged to form a tight seal between said male and female portions whencompressed; and

means movable relative to and actuat'edby.

a relative rotation between said male and female portions forcompressing said packing member axially and radially.

2.l A joint comprising: ay tubular member having a female portion formedon the end thereof; a tubular member having a male portion formed at theend thereof, said male portion being arranged for completeinsertion intosaid female portion without4 rela# tive rotation thereof; a packingVmember arranged to form a tight seal between' said male and femaleportions when compressed; and a compressing member arranged forcompressing said packing member, said compressing member being operatedrelative to both tubular members YtoV compress said pack-ingv memberaxially and radially by a relative rotation between said male and femaleportions.

3. A joint comprisingza female member; a male member, said male' memberbeing adapted for complete insertion into said female member withoutvrelative rotation thereof; a'paclring member on said male member; and acompressing member carried by and movable relative to said male member,said compressing member being' arranged to compress said packing: memberaxially and radially in a mannery to form a seal between said male andfemale members and said compressing member being arranged to be actuatedby a' relative rotation between said male and female members."V

4. A joint comprising: a female member; a malel member, said male memberbeing adapted for insertion into said femalev member; a` pacl'ringmember on said male mem-v ber; and a compressing member carried by saidmale member, said compressing mem-.

axially on said male said packing member. 5. A joint compr'isinv adaptedfor insertion into said yfemale member; a rctaininglipprovided at theouter end of said female member for retaining said niale member therein;a packing inemj ber on said male member; and a compressingmember carriedby and movable relative to said male member; said compressing memberbeing arranged to compress said packing member axially and radially in amanner to form a seal between said male and female members, andsaidcompressiiig member being arranged to be actuated by a relativerotation between said male and female members. n n y 6. Ajointcomprising: a4 male member;

a female member adapted to receive 'said male member, said female memberbeing provided with an open seam to permit an expansion thereof in orderto allow the entrance of said male member; a retaining lip provided atthe end of said female member for retaining said male member therein; apacking member on saidk male member; and a compressing member carried bysaid male member, said compressing member being arranged to compresssaid packing member in a manner to form a seal between said maleandvfeniale members, andsaid compressing member being arranged to beactuated by a relative rotation between said male and female members.

7. A joint comprising: a male member; a female member adapted to receivesaid male member7 said female member being provided with an open seam topermitan expansion thereof in order to allow the entrance of said malemember; aretaining lip provided at the end of said female member forretaining said male member therein; a packing member on said malemember; a compressing member carried by said male member, saidcompressing member being arranged to compress said packing member in amanner to form a seal between said male and female members; and meansfor clamping said female member around said kmale member.. Y

8. A. joint comprising: afemale member; a male member, said male memberbeing adapted forinsertioninto said female member; a retaining lipprovided at the cuter end of lsaid Afemale member for retaining saidmale member therein; a packing meinber on said male member; acompressing member carried by and movable relative to said male member;cam yfaces formed on said retaining lip; and cam formations a femalemember; i a male meinber;`- saidY 'male memberlvbeing:

formed tonfsaid compressing member,;,said l Y cam'f 4formationsl'b'eingjadapted :to engage-f with` s aid-` cam faces,said.cani'formationsu riding along lsaid' cam'fac'es kwhen arelative Arotationbetween said male and said feniale'i members occ'iirsfini a manner tomove said compressing Emember and compi'esssaid packing memberaxial'lyrand radiallyi: ai;

9;A joint''comprising: a female member; 'al male. memben* sai-d male.member being. adapted for insertion into said female member; aretaining lip provided at the outer end of said' female member forretaining said male member therein; a packing meniber on said malemember; compressing member carriedl by said male member; cam facesformed on said retaining lip; cam formations formed on said compressinginemeiigage with said cam faces; said cam formations riding along saidcam faces when a relative rotation ybetween said male and saidfemalemembers occurs, ina manner to move said compressing member'and compresssaid packing member; and means permitting "a relative movement betweensaidmale member and said compressing member in an axial direction only.

10. A joint comprising: a female member; a `male member, said malemember being `adapted for insertion into said female meintions beingadapted to engage with said cam faces,v said cam formations riding alongsaid cam faces when a relative rotationlbet'ween said male and saidfemale members foccurs,

in a manner to move said compressing member and compress said packingmember axially and radially; and means for locking said male and femalemembers in rotated position.

` 11. A joint comprising: a female member; a male member, said malemember being adapted fo-r insertion into saidfemale member; a retainingllip provided at the outer end of said female member for retaining saidmale member therein; a packing member on said male member; a compressingmember carried by said male member; camfaces formed on said retaininglip; cam formations formed on said compressing member, said caniformations being adapted to engage with said cam faces, said camformations riding along said cam faces when a relative rotation betweensaid male and said female members occurs, in a manner to move saidcompressing member and compress said packing member; means permitting arelaber, said cam formations beingV adapted to tive movement betweensaid male member and said compressing member in an axialdirection only;and means for looking` said male and female members in rotated'position.

12. A joint Comprising: having an exterior lipv formed at the endthereof; a' female member having a retaining lip, said female memberbeing capable 10 of expansion to allow an entrance of said a malemember-v MARION R. SHIPLEY..V

